python – Spotipy试图用oauth验证

import spotipy
import spotipy.util as util

class buildPlayList():
    def __init__(self,name):
        scope = 'playlist-modify-public'
        self.username=name
        token = util.prompt_for_user_token(self.username,scope,client_id='',client_secret='',redirect_uri='http://example.com/callback/')
        self.sp = spotipy.Spotify(auth=token)
        print self.sp.current_user()

    def make_and_build(self):
        pass
x=buildPlayList("myname")

我运行它然后我得到这个：

User authentication requires interaction with your
 web browser. Once you enter your credentials and
 give authorization,you will be redirected to
 a url.  Paste that url you were directed to to
 complete the authorization.

我转到URL,这是一个错误,我把它发回到命令行,它出错了.我不知道为什么这个库会这样做,所有其他人通常都会使用用户名,密码,客户端ID和客户端密码.由于某种原因,这个让你走得更远.一些帮助将不胜感激.我正在使用所有正确的信息.我不确定这个重定向网址是什么,也许这会导致问题？